I'm sure this has been discussed, but can't find any definitive answer.

The 3D battlefield view is much too dark. What can be done about that, if anything?

Thanks in advance.

Difficult to answer... maybe the meteorology and the hour ?The light varies with the conditions and maybe that it is right for a good meteo and a good time.Otherwise, I have to add a new parameter for adjusting the light in a future version.